Wrap your text in >! !< tags (e.g., >!This is a spoiler!< ).
To use a spoiler tag is to say: 'I have seen the mountain top, but I want you to feel the climb for yourself.' It is the ultimate respect for a fellow traveler. Let’s protect the 'Aha!' moments—they are the few surprises left in a world that wants to tell us everything at once." Technical Reminder: How to Properly Hide Content Show Spoiler
To produce a "deep" post for a spoiler—one that moves beyond just a warning and explores the ethics and psychology of sharing information—you can focus on the tension between the excitement of discovery and the sanctity of the first-time experience. Wrap your text in >